Cheers Mike, don't worry mate, i'm used to people like him. Just fishing between Internet Porn sessions probably.
Anyway...tried WFP today (Me and me Dad), just a practice run really on his house, we've got a Tucker Pole and Brush with a Sureflo backpack on a trolley (cheapest option to give it a trial)
His house is a 3 bed semi, we seemed to use around 17 litres to do it all (backpack nearly empty) i've searched around here tonight and it seems approx 80 litres an hour non stop is normal. I agree there as it took approx 15 mins to do his house. We cleaned frames first then glass. Wouldn't have taken much longer to do it Trad, but it was our first stab at WFP...
BUT, my main concern was the watermarks that were still left, even with a reading of 0.01 in the meter (274 pre DI, we use a vertical DI tank with 25kg of resin in it.) We even went over the house again and there were still the watermarks here and there where the spotting had dried. Theres no way i could walk away from a domestic job the way this trial went and expect no complaints.
Bearing in mind, the windows hadn't been cleaned for 5-6 months i should think, and the frames would have been dirty as me Dad has done them now and again trad. Me Dad is was on windows for donkeys years and gave me his round 10 years ago so we both know whats what when it comes to window cleaning.
Basically, i'm looking for a bit of advice and a few questions answered please.
Like is there a certain knack or technique to WFP to reduce watermarks?
Is Purified water supposed eliminate watermarks completely?
Is 80 litres of water used per hour approx the right amout to be getting through?
Cheers in advance.